CN106984422A - A kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system and fuzzy control method - Google Patents
A kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system and fuzzy control method Download PDFInfo
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- CN106984422A CN106984422A CN201710188542.XA CN201710188542A CN106984422A CN 106984422 A CN106984422 A CN 106984422A CN 201710188542 A CN201710188542 A CN 201710188542A CN 106984422 A CN106984422 A CN 106984422A
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- chinese medicine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Abstract
The invention discloses a kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, including：Multiple sensing devices, the sensing device includes：Weighing sensor, it is arranged on traditional Chinese medicine powder attrition process production line gating location；Velocity sensor, it is arranged on grinder, for detecting grinder rotating speed；Screening plant, it is the different hole sizer in aperture, is arranged on traditional Chinese medicine powder attrition process production line roughly grinding operation device charging aperture；Granule detecting device, it is arranged on the traditional Chinese medicine powder attrition process production line fine grinding process device discharging opening, and a kind of traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method is provided, the milling time for obtaining grinder is calculated using two grades of fuzzy controllers, the precise controlling of traditional Chinese medicine powder production is realized.
Description
Technical field
Monitored the present invention relates to industrial production line monitoring field, more particularly to a kind of traditional Chinese medicine powder attrition process production line particle diameter
System and a kind of traditional Chinese medicine powder attrition process production line fuzzy control method.
Background technology
Monitoring system is applied to the equipment of industrial product, easy with its deployment, and extension is convenient, the low advantage of maintenance cost,
Gradually applied in industrial automation production, in automatic production line, because technological process is often longer and narrower, transverse area
Often there is no mass communication node, it is difficult to form network.
On the other hand, in traditional Chinese medicine powder production industrial processes, the seasoning added in the different phase of processing is different, powder
Broken to require different, the parameter of required control is complicated, and the whole each working equipment of production line is occurred without idle and can not occurred
" blocking " phenomenon, therefore be badly in need of a kind of manufacturing monitoring system to ensure that whole production line continuously works in an orderly manner.
The content of the invention
The present invention has designed and developed a kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, using a variety of sensing devices
Production line is monitored, freely, instantaneity is good for dismounting.
The present invention has also designed and developed a kind of traditional Chinese medicine powder attrition process production line fuzzy control method, using two grades of Fuzzy Controls
Device processed calculates the milling time for obtaining grinder, realizes the precise controlling of traditional Chinese medicine powder production.
The technical scheme that the present invention is provided is：
A kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, including：Multiple sensing devices, the sensing device bag
Include：
Weighing sensor, it is arranged on traditional Chinese medicine powder attrition process production line gating location；
Velocity sensor, it is arranged on grinder, for detecting grinder rotating speed；
Screening plant, it is the different hole sizer in aperture, is arranged on traditional Chinese medicine powder attrition process production line roughly grinding operation device and enters
Material mouth；
Granule detecting device, it is arranged on the traditional Chinese medicine powder attrition process production line fine grinding process device discharging opening.
Preferably, the granule detecting device, including：
Light source, it is near-infrared laser beam；
Modulating device, it is used for the laser beam modulation of injecting light source into parallel, uniform intensity laser beam；
Sample cell, it is used to accommodate candidate particles, and laser beam produces scattered light with candidate particles interaction；
Amici prism, is divided into energy identical two-beam by scattered light；
Converting unit is screened, the scattering light component for being parallel and perpendicular to scattering surface is filtered out respectively, and be converted into electric signal；
Computing unit, light energy data are converted into by the electric signal of collection, and solving particle size distribution with Inversion Calculation believes
Breath.
Preferably, the modulating device, including：The polarizer and beam-expanding collimation device, the polarizer are linear polarizer, institute
It is 4 to state beam-expanding collimation device multiplying power.
A kind of traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method, including：
The aperture D of hole sizer0, weighing sensor detection is put into Chinese medicine weight M, the first grinder rotating speed ω in grinder；
Aperture signal, weight signal, tach signal are inputted into the calculating of the first fuzzy controller and obtain grinding for the first grinder
Consume time t1；
The traditional Chinese medicine powder particle diameter D after the grinding of the first grinder detected according to granule detecting devicemDuring with the first grinding
Between t1, traditional Chinese medicine powder stiffness G is estimated, and calculate the power P of the second grinder2；
Traditional Chinese medicine powder weight signal, stiffness signal input second after the power signal of second grinder, grinding are obscured
Controller calculates the milling time t for obtaining the second grinder2。
Preferably, the fuzzy set of the weight signal and tach signal is：{ NB, NM, NS, ZR, PS, PM, PB }, NB tables
Show negative big, during NM represents negative, NS represents negative small, and ZR represents that zero, PS represents just small, and PM represents center, and PB represents honest, they
Domain is：{ -6, -5, -4, -3, -2, -1,0,1,2,3,4,5,6 }.
Preferably, the fuzzy set of the first grinder milling time and the second grinder milling time for NB,
NM, NS, ZR, PS, PM, PB }, NB represents very short, and NM represents short, and NS represents shorter, during ZR is represented, PS represents longer, and PM is represented
Long, PB represents very long, and their domain is：{ -6, -5, -4, -3, -2, -1,0,1,2,3,4,5,6 }.
Preferably, the input of first fuzzy controller and the membership function of output variable select triangle to be subordinate to
Category degree function.
Preferably, the traditional Chinese medicine powder stiffness estimation equation is：
Wherein, G is Chinese medicine stiffness；k1For the first grinder rotating speed correction coefficient；k2For particle diameter correction coefficient；m1For
Traditional Chinese medicine powder weight after being ground through the first grinder；ω is the first grinder rotating speed；M is the Chinese medicine weight being put into grinder；Dm
For traditional Chinese medicine powder particle diameter, D after being ground through the first grinder0For the aperture of hole sizer.
Preferably, the rating formula of second grinder is：
Wherein, η is mechanical efficiency, and g is acceleration of gravity, and D is cylinder internal diameter, and S is power factor, and f is sliding friction system
Number,For the displacement at mass of medium center.
Beneficial effects of the present invention
The present invention has designed and developed a kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, using a variety of sensing devices
Production line is monitored, freely, instantaneity is good, also provides a kind of traditional Chinese medicine powder attrition process production line fuzzy control side for dismounting
Method, the milling time for obtaining grinder is calculated using two grades of fuzzy controllers, realizes the precise controlling of traditional Chinese medicine powder production.
Brief description of the drawings
Fig. 1 is the structural representation of traditional Chinese medicine powder attrition process production line particle diameter monitoring system of the present invention.
Fig. 2 is the structural representation of granule detecting device of the present invention.
Fig. 3 is aperture D of the present invention0Membership function table.
Fig. 4 is aperture P of the present invention2Membership function table.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in figure 1, the present invention provides traditional Chinese medicine powder attrition process production line particle diameter monitoring system, including：Multiple sensing dresses
Put, sensing device includes：Weighing sensor, it is arranged on traditional Chinese medicine powder attrition process production line gating location；Velocity sensor,
It is arranged on grinder, for detecting grinder rotating speed；Screening plant, it is the different hole sizer in aperture, is arranged on traditional Chinese medicine powder
Attrition process production line roughly grinding operation device charging aperture；Granule detecting device, it is arranged on the traditional Chinese medicine powder attrition process life
Producing line fine grinding process device discharging opening.
As shown in Fig. 2 particle size detection device 500, including：Light source 510, modulating unit 520, sample cell 530, light splitting
Prism 540, screening converting unit 550 and computing unit 560.As a preferred embodiment, light source 510 selects He-Ne lasers, transmitting
Wavelength is 630-635nm, and power output is 2-3mW.He-Ne lasers, generation launch wavelength is 632.8nm, and power output is
2.4mW laser beam, modulating unit 520 includes the polarizer and beam-expanding collimation device, and the polarizer is linear polarizer, and laser beam passes through
Spuious light is filtered off after inclined device, light intensity is decayed, energy attenuation is 1mW, beam-expanding collimation device is four times and expanded.Laser beam is passed through
Beam-expanding collimation device is crossed, beam diameter is about 8mm, and sample cell 530 accommodates candidate particles solution, laser beam and candidate particles phase interaction
With scattered light is produced, scattered light is divided into energy identical two-beam by Amici prism 540.Screening converting unit 550 includes polarization
Piece, fourier lense and photodetector.Photodetector is located at the focal plane of fourier lense, and screening converting unit 550 has
Two, respectively positioned at the two ends of the light extraction of Amici prism 540.Two screening converting units 550 are filtered out parallel to scattering surface respectively
The scattering light component and scattering light component perpendicular to scattering surface, change optical signal into electric signal.Computing unit 560 includes A/D
Modular converter and computer.Two photodetectors are electrically connected with the A/D modular converters of computing unit 560 respectively.Screening is turned
The signal for changing the output of the photodetector of unit 550 is converted to data signal.Computer converts digital signals into light energy data,
Particle size distribution information is solved with Inversion Calculation.
Light source 510 sends monochromatic laser beam turns into parallel, uniform intensity laser beam by the modulation of modulating unit 520；
The laser beam contacts acquisition particle energies formation scattered light with the tested particle in sample cell 530；Scattered light passes through Amici prism
540 are divided into energy identical two-beam；Screening converting unit 550 is filtered out parallel to scattering surface and perpendicular to scattering surface respectively
Light component is scattered, and is converted into parallel direction electric signal and vertical direction electric signal respectively；Computing unit 560 is by the telecommunications of collection
Number parallel direction light energy data and vertical direction light energy data are reduced into, the equation group represented according to matrix, which is calculated, to be solved
Grain particle diameter distribution information.
Traditional Chinese medicine powder attrition process production line includes：Screening plant 100, the first grinder 200, the second grinder 300.
Traditional Chinese medicine powder process of lapping is as follows：First, Chinese medicinal granule enough screens particle diameter through screening plant 100 less than hole sizer hole
The Chinese medicinal granule in footpath is roughly ground into the first grinder 200, and fine grinding is carried out through the second grinder 300 after completion, obtains Chinese medicine
Powder, to ensure production line operating efficiency, it is ensured that the continuity of the work of producing line equipment, designs a kind of traditional Chinese medicine powder grinding production line mould
Fuzzy control method, including：
The aperture D of hole sizer0, weighing sensor detection is put into Chinese medicine weight M, the first grinder rotating speed ω in grinder；
Wherein, D0, M, ω actual change scope be respectively [- 0.5,0.5], [- 30,30], [- 1,1]；T, Q, ω from
Scattered domain is { -6, -5, -4, -3, -2, -1,0,1,2,3,4,5,6 }
Then scale factor k2=6/0.5, k1=6/30, k3=6/1
Ambiguity in definition subset and membership function
As shown in figure 3, aperture D0It is divided into 3 fringes：PB (honest), PM (center), PS (just small), are incorporated experience into
Draw aperture D0Membership function table.
Chinese medicinal granule weight, M points are seven fringes：PB (honest), PM (center), PS (just small), 0 (zero), NS
(negative small), NM (in negative), NB (negative big), incorporates experience into the membership function table that particle weight M is wanted in drawing, as shown in table 1.
The Chinese medicinal granule weight M of table 1 membership function table
The first grinder rotating speed, ω points are seven fringes：PB (honest), PM (center), PS (just small), 0 (zero),
NS (negative small), NM (in negative), NB (negative big), incorporate experience into the membership function table for drawing the first grinder rotating speed ω, such as the institute of table 2
Show.
The grinder rotating speed ω of table 2 first membership function table
| ω | -6 | -5 | -4 | -3 | -2 | -1 | -0 | +1 | +2 | +3 | +4 | +5 | +6 |
| PB | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.7 | 1.0 |
| PM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.8 | 1.0 | 0.8 | 0.2 |
| PS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.8 | 1.0 | 0.8 | 0.2 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 1.0 | 0.5 | 0 | 0 | 0 | 0 | 0 |
| NB | 0 | 0 | 0.2 | 0.8 | 1.0 | 0.8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NM | 0.2 | 0.8 | 1.0 | 0.8 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NS | 1.0 | 0.7 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Fuzzy reasoning process has to carry out the matrix operation of complexity, and amount of calculation is very big, and on-line implement reasoning is difficult to meet
The requirement of control system real-time, the present invention carries out fuzzy reasoning computing using look-up table, and Fuzzy inferential decision is using three inputs
The mode of single output.
The preliminary control rule of fuzzy controller can be summed up by experience, wherein parameter q controls rule is shown in Table 3.
Table 3 is fuzzy control rule table
Fuzzy controller carries out defuzzification according to the fuzzy value drawn to output signal, when obtaining the cleaning of cleaning machine
Between, fuzzy polling list is sought, because domain is discrete, fuzzy control rule and a fuzzy matrix can be expressed as, adopted
Single-point obfuscation is used, fuzzy polling list is obtained.
Traditional Chinese medicine powder stiffness estimation equation is：
Wherein, G is Chinese medicine stiffness；k1For the first grinder rotating speed correction coefficient；k2For particle diameter correction coefficient；m1For
Traditional Chinese medicine powder weight after being ground through the first grinder；ω is the first grinder rotating speed；M is the Chinese medicine weight being put into grinder；Dm
For traditional Chinese medicine powder particle diameter, D after being ground through the first grinder0For the aperture of hole sizer.
The rating formula of second grinder is：
Wherein, η is mechanical efficiency, and g is acceleration of gravity, and D is cylinder internal diameter, and S is power factor, and f is sliding friction system
Number,For the displacement at mass of medium center.
By the power signal P of the second grinder2, traditional Chinese medicine powder weight signal m after grinding1, stiffness signal G input second
Fuzzy controller calculates the milling time t for obtaining the second grinder2。
Wherein, P2、m1, G actual change scope be respectively [- 0.5,0.5], [- 30,30], [- 1,1]；T, Q, ω from
Scattered domain is { -6, -5, -4, -3, -2, -1,0,1,2,3,4,5,6 }
Then scale factor k2=6/0.5, k1=6/30, k3=6/1
Ambiguity in definition subset and membership function
As shown in figure 4, aperture P2It is divided into 3 fringes：PB (honest), PM (center), PS (just small), are incorporated experience into
Draw aperture D0Membership function table.
Chinese medicinal granule weight, M points are seven fringes：PB (honest), PM (center), PS (just small), 0 (zero), NS
(negative small), NM (in negative), NB (negative big), incorporates experience into the membership function table that particle weight M is wanted in drawing, as shown in table 4.
Traditional Chinese medicine powder weight signal m after table 4 is ground1Membership function table
G points of stiffness signal is seven fringes：PB (honest), PM (center), PS (just small), 0 (zero), NS are (negative
It is small), NM (in negative), NB (negative big) incorporate experience into the membership function table for drawing the first grinder rotating speed ω, as shown in table 5.
The stiffness signal G of table 5 membership function table
| G | -6 | -5 | -4 | -3 | -2 | -1 | -0 | +1 | +2 | +3 | +4 | +5 | +6 |
| PB | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.7 | 1.0 |
| PM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.8 | 1.0 | 0.8 | 0.2 |
| PS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.8 | 1.0 | 0.8 | 0.2 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0.5 | 1.0 | 0.5 | 0 | 0 | 0 | 0 | 0 |
| NB | 0 | 0 | 0.2 | 0.8 | 1.0 | 0.8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NM | 0.2 | 0.8 | 1.0 | 0.8 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| NS | 1.0 | 0.7 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Fuzzy reasoning process has to carry out the matrix operation of complexity, and amount of calculation is very big, and on-line implement reasoning is difficult to meet
The requirement of control system real-time, the present invention carries out fuzzy reasoning computing using look-up table, and Fuzzy inferential decision is using three inputs
The mode of single output.
The preliminary control rule of fuzzy controller, wherein parameter t can be summed up by experience2Control rule is shown in Table 6.
Table 6 is fuzzy control rule table
Fuzzy controller carries out defuzzification according to the fuzzy value drawn to output signal, obtains the grinding of the second grinder
Time, fuzzy polling list is sought, because domain is discrete, fuzzy control rule and a fuzzy matrix can be expressed as,
Using single-point obfuscation, fuzzy polling list is obtained.
The present invention has designed and developed a kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, using a variety of sensing devices
Production line is monitored, freely, instantaneity is good for dismounting, when obtaining the grinding of grinder using two grades of fuzzy controllers calculating
Between, realize the precise controlling of traditional Chinese medicine powder production.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (9)
1. a kind of traditional Chinese medicine powder attrition process production line particle diameter monitoring system, it is characterised in that including：Multiple sensing devices, it is described
Sensing device includes：
Weighing sensor, it is arranged on traditional Chinese medicine powder attrition process production line gating location；
Velocity sensor, it is arranged on grinder, for detecting grinder rotating speed；
Screening plant, it is the different hole sizer in aperture, is arranged on traditional Chinese medicine powder attrition process production line roughly grinding operation device charging aperture；
Granule detecting device, it is arranged on the traditional Chinese medicine powder attrition process production line fine grinding process device discharging opening.
2. traditional Chinese medicine powder attrition process production line particle diameter monitoring system according to claim 1, it is characterised in that the particle
Detection means is spent, including：
Light source, it is near-infrared laser beam；
Modulating device, it is used for the laser beam modulation of injecting light source into parallel, uniform intensity laser beam；
Sample cell, it is used to accommodate candidate particles, and laser beam produces scattered light with candidate particles interaction；
Amici prism, is divided into energy identical two-beam by scattered light；
Converting unit is screened, the scattering light component for being parallel and perpendicular to scattering surface is filtered out respectively, and be converted into electric signal；
Computing unit, light energy data are converted into by the electric signal of collection, and particle size distribution information is solved with Inversion Calculation.
3. traditional Chinese medicine powder attrition process production line particle diameter monitoring system according to claim 2, it is characterised in that the modulation
Device, including：The polarizer and beam-expanding collimation device, the polarizer are linear polarizer, and the beam-expanding collimation device multiplying power is 4.
4. a kind of traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method, it is characterised in that including：
The aperture D of hole sizer0, weighing sensor detection is put into Chinese medicine weight M, the first grinder rotating speed ω in grinder；
Aperture signal, weight signal, tach signal the first fuzzy controller of input are calculated when obtaining the grinding of the first grinder
Between t1；
The traditional Chinese medicine powder particle diameter D after the grinding of the first grinder detected according to granule detecting devicemWith the first milling time t1,
Traditional Chinese medicine powder stiffness G is estimated, and calculates the power P of the second grinder2；
Traditional Chinese medicine powder weight signal, stiffness signal after the power signal of second grinder, grinding are inputted into the second fuzzy control
Device calculates the milling time t for obtaining the second grinder2。
5. traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method according to claim 4, it is characterised in that described
The fuzzy set of weight signal and tach signal is：{ NB, NM, NS, ZR, PS, PM, PB }, NB represents negative big, during NM represents negative, NS
Represent negative small, ZR represents that zero, PS represents just small, and PM represents center, and PB represents honest, and their domain is：- 6, -5, -4, -
3, -2, -1,0,1,2,3,4,5,6 }.
6. traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method according to claim 4, it is characterised in that described
The fuzzy set of first grinder milling time and the second grinder milling time is { NB, NM, NS, ZR, PS, PM, PB }, NB
Represent very short, NM represents short, and NS represents shorter, during ZR is represented, PS represents longer, and PM represents long, and PB represents very long, their opinion
Domain is：{ -6, -5, -4, -3, -2, -1,0,1,2,3,4,5,6 }.
7. traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method according to claim 4, it is characterised in that described
The input of first fuzzy controller and the membership function of output variable select Triangleshape grade of membership function.
8. traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method according to claim 4, it is characterised in that described
Traditional Chinese medicine powder stiffness estimation equation is：
Wherein, G is Chinese medicine stiffness；k1For the first grinder rotating speed correction coefficient；k2For particle diameter correction coefficient；m1For through
Traditional Chinese medicine powder weight after the grinding of one grinder；ω is the first grinder rotating speed；M is the Chinese medicine weight being put into grinder；DmFor warp
Traditional Chinese medicine powder particle diameter, D after the grinding of first grinder0For the aperture of hole sizer.
9. traditional Chinese medicine powder attrition process production line particle diameter fuzzy control method according to claim 4, it is characterised in that described
The rating formula of second grinder is：
Wherein, η is mechanical efficiency, and g is acceleration of gravity, and D is cylinder internal diameter, and S is power factor, and f is the coefficient of sliding friction,
For the displacement at mass of medium center.
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| CN112871386A (en) * | 2020-12-23 | 2021-06-01 | 安徽华润金蟾药业股份有限公司 | Superfine grinding device for traditional Chinese medicine decoction pieces and application thereof |
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| CN112871386B (en) * | 2020-12-23 | 2022-09-30 | 安徽华润金蟾药业有限公司 | Superfine grinding device for traditional Chinese medicine decoction pieces and application thereof |
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